Originally the project, IFSY participated for several years in international exchanges in the social education sector as part of the International Association for Research and Social Intervention. Close contacts with some European players has led us to consider student mobility projects. The IFSY is a training institution offering post-baccalaureate training courses in the sectors of social and medico-social. ERASMUS The device is aimed at both students in training preparing for the State diploma of social worker, and in teaching and administrative staff participating in training missions. The goals of the project of mobility in training students and personnel are multiple. First, it ensures a certain attractiveness for prospective students to our facility wanting to discover other national contexts at European level as part of their studies. Then the project ensures openness in terms of trade practices both educational and professional for the social sector and nursing home as part of dual training. Furthermore it allows greater openness in providing training towards the students. Finally, this project to develop a European partnership network needed to support the alternation in the social sector training while promoting the dissemination of good working practices. This action allowed two second assistant training year students of Social Work discover two Belgian specialized structures in the host device of foreign minors. This discovery was made possible as part of a direct link courses with professional practices and audiences (4 months for each student). Students from IFSY were able to observe through these courses different professional practices as those encountered in France with a political and administrative organization specific to Belgium and dedicated to the public of young unaccompanied minors. They also had the opportunity to practice social interventions based on the professional model they knew him. These actions, conducted within the regulated framework of ERASMUS, helped contribute to the professionalization of the IFSY students the richness dating diversified practices and models developed on the land, in a shared dimension with our European colleagues. This experience is extremely positive in the construction of the professionalization of students in the preparation of their state diploma in France and allow them in the more distant future to consider the prospects of job mobility at European level, including thanks to the network developed during mobility